ambassador chris stephens who is from the bay area and three others in the city of benghazi on tuesday. libya announced four arrests to day saying the militants timed the attack to coincide with the anniversary of september 11th. >>> in washington, there is concern that growing foreign crisis will become a factor in the u.s. presidential campaign. nbc bay area steve handlesman reports from capitol hill. >> reporter: like in libya tuesday, today's anti-american rioting, yemen got out of control. the mob in the capital storming the u.s. embassy complex and breaking in before police beat them back. no americans reported hurt. it's the third arab nation rocked by protests aimed at the u.s. this was egypt last night. another outburst of anger over the kurd anti-muslim movie said to be made in the u.s. but not by the u.s. government. secretary of state clinton tried to make clear about the video today. >> we absolutely reject its content and message. >> reporter: no criticism from mitt romney. after he took hits through accusing the obama administration of sympathizing with the riots. the pr